What kind of system are you running ? Did you PH the rockwool for 24 hours before use ? Why did you switch to rockwool ? So many question but not enough time. More info, more help. It should get better with time though.
LOC NAR on probation Reviewed by LOC NAR on probation on . First time with rock wool. This is my first time useing rock wool. Seems to be working pretty good so far, but the PH is going up each day. I am useing R/O water, and I ph it to about 5.5, by the next day it is up to over 7.0. It is only been 3 days now. Is this normal, and if so, we it get better with time? I am useing the same nuts as I used the last time, and my PH was real stable. Thanks for any help. Chab. Rating: 5